ProMaster USB-C NP-F770 Sony Lithium Ion 7.4V 4400mAh Battery

ProMaster USB-C Rechargeable Lithium-Ion Battery (Sony NP-F770 Replacement)
High-Capacity Multi-Device L-Series Power Pack – 4,400 mAh / 32.56 Wh Output, Integrated Direct USB-C Charging Port, Dual-Color LED Status Indicator, Broad System Compatibility for Sony L-Series Mount Cameras, On-Camera Field Monitors, Continuous LED Video Lights & Motorized Gimbals, Compatible with Standard External NP-F Chargers, Multi-Stage Circuit Protection, Includes USB Type-C to Type-C Cable & Protective Hard Storage Travel Case (Excellent Condition)

The ProMaster USB-C Rechargeable Lithium-Ion Battery is a high-capacity, versatile power solution designed to replace standard Sony NP-F770, NP-F750, and NP-F550 L-series style battery packs. Engineered for professional video production sets, independent filmmakers, broadcast field teams, and studio content creators, this pack features an onboard USB-C charging port built directly into its casing. This design allows operators to recharge large-capacity production packs quickly in the field using common USB-C power banks, multi-port USB hubs, laptop chargers, or vehicle adapters without hauling bulky, proprietary NP-F dual-bay cradles.

Constructed using premium-grade lithium-ion cells delivering 4,400 mAh (32.56 Wh) of reserve energy at 7.4V, this battery provides long runtimes for high-draw equipment, including LED panel lights, on-camera director monitors, wireless video transmitters, motorized follow-focus systems, and professional camcorders. In addition to direct USB-C charging, the battery remains fully compatible with traditional external Sony NP-F wall chargers and charging sleds. A built-in LED charging indicator glows red during charge cycles and switches to solid green when full capacity is reached (in approximately 3 hours and 50 minutes with a 2.3A USB-C source). The pack includes internal safety circuitry safeguarding against overcharge, deep discharge, overcurrent, overvoltage (voltage regulation), and short circuits, and comes complete with a fitted, impact-resistant travel case that shields the terminal contacts from debris and accidental metal shorting during transit.

KEY FEATURES & PERFORMANCE HIGHLIGHTS

Integrated Direct USB-C Charging Port: Power up anywhere using portable power banks, laptop chargers, or USB wall adapters without carrying dedicated external NP-F docks.

High-Capacity 4,400 mAh Reserve: Premium lithium-ion cells provide 32.56 Wh of sustained output for power-hungry LED light panels, wireless transmitters, and field monitors.

Dual-Color LED Status Lamp: Built-in indicator illuminates red during charge cycles and transitions to solid green when replenishment is complete.

Dual Charging Flexibility: Recharges directly through the integrated USB-C port or on traditional external chargers designed for Sony NP-F series batteries.

Universal L-Series Compatibility: Mounts seamlessly to any video accessory or camera designed around the industry-standard Sony NP-F / L-series battery platform.

Multi-Stage Electronic Safety Architecture: Built-in safeguards protect against overcharge, deep discharge, overcurrent, overvoltage regulation, and short circuits.

Dedicated Protective Storage Case: Impact-resistant snap case protects terminals from damage, dust, and short circuits during gear transport.

COMPREHENSIVE DEVICE COMPATIBILITY

Continuous LED Studio & On-Camera Lighting: Compatible with Aputure, Godox, Nanlite, SmallRig, Neewer, and ProMaster LED light panels and tube lights accepting NP-F series batteries.

On-Camera Field Monitors: Compatible with Atomos (Ninja, Shinobi), Feelworld, PortKeys, Lilliput, and SmallHD monitors.

Motorized Gimbals & Wireless Transmission: Compatible with Hollyland, Accsoon, Teradek wireless transmitters, and motorized slider/gimbal accessory plates.

Video Camcorders & Rigs: Fully compatible with Sony professional camcorders and third-party cinema battery plates utilizing Sony L-series NP-F mounts.

Replaces OEM Battery Models: Sony NP-F770, NP-F750, and NP-F550

TECHNICAL SPECIFICATIONS

Product Type: Rechargeable Lithium-Ion Battery with Direct USB-C Port

Brand: ProMaster

Format / Mount: Sony L-Series / NP-F Mount

Battery Chemistry: Lithium-Ion (Li-Ion)

Voltage: 7.4 V

Rated Capacity: 4,400 mAh / 32.56 Wh

Direct Charging Interface: Built-In USB Type-C Female Port

Minimum Charging Input Current: 0.5 A

Preferred Charging Input: 2.3 A at 5V (via USB-C Power Source)

Recharge Time: Approx. 3 Hours 50 Minutes (from fully depleted to 100% with 2.3A input)

Status Indicator: Integrated Bi-Color LED (Red: Charging / Green: Fully Charged)

Alternative Charging Methods: Compatible with Dedicated External Sony NP-F Sled/Wall Chargers

Built-In Protection Circuitry: Overcharge Protection, Over-Discharge Protection, Overcurrent Protection, Overvoltage Regulation, Short-Circuit Protection

Battery Dimensions: Approx. 2.80 x 1.54 x 1.57 inches / 71.0 x 39.0 x 40.0 mm

Battery Weight: Approx. 7.05 oz / 200 g

Storage Case Dimensions: Approx. 3.19 x 1.93 x 1.89 inches / 81.0 x 49.0 x 48.0 mm

Total Kit Weight: Approx. 7.94 oz / 225 g (Battery, USB-C Cable & Hard Storage Case)

Physical Condition: Excellent cosmetic, terminal, and fully functional operational condition

Included Accessories: ProMaster 4,400 mAh USB-C NP-F770 Battery, USB Type-C to Type-C Cable, Fitted Protective Hard Storage Case

Color / Finish: Matte Black Housing with White Technical Markings

Function: On-Camera Field Monitor Power, Portable Studio LED Illumination, Wireless Video Systems, Motorized Gimbal Rigs & High-Draw Camcorder Production